a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end
同义词:seesaw??/??teeter??/??teeter-totter??/??teetertotter??/??teeterboard??/??tilting board??/??dandle board
ride on a plank
同义词:teeter-totter??/??teetertotter??/??seesaw
move up and down as if on a seesaw
同义词:seesaw
move unsteadily, with a rocking motion
同义词:teeter??/??seesaw??/??totter
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